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作 者:温焕连[1] 黎喜梅[1] 曾文铤[1] 朱科伦[1]
机构地区:[1]广州医学院第一附属医院感染内科,510120
出 处:《中华生物医学工程杂志》2012年第3期191-194,共4页Chinese Journal of Biomedical Engineering
基 金:广州市卫生局资助课题(2007-YB-150)
摘 要:目的观察人参皂苷Rg3对逆转人肝癌细胞BEL-7402耐药作用。方法MTT法测定人参皂苷Rg3与长春新碱(VCR)联合对肝癌细胞BEL-7402生长抑制率,反转录多聚酶链反应(RT—PCR)检测人参皂苷Rg3作用于肝癌细胞MDR1 mRNA的表达量。结果不同浓度的人参皂苷Rg3(10、20、30、40、60mg/L)与长春新碱(0.02mg/L)联合作用后,其对细胞增殖抑制率较单独用药时作用增加(P〈0.05),相互作用指数CDI〈1。人参皂苷Rg340.0μg/mL作用于肝癌细胞BEL-7402不同时间(24、48、72h)后MDR1 mRNA的表达量明显下降[(79.21±2.23)%,(62.58±2.46)%,(45.46±1.13)%],与对照组差异有统计学意义(P〈0.05)。结论人参皂苷Rg3与长春新碱联合应用具有协同抑制作用,能逆转BEL-7402对VCR的耐药。人参皂苷Rg3能抑制BEL-7402细胞MDR1 mRNA的表达。Objective To determine the effect of ginsenoside Rg3 on reversal of multidrug resistance of hepatocellular carcinoma (HCC) cells bel- 7402. Methods MTT method was employed to determine the inhibitory rate of ginsenoside Rg3 in combination with vincristine (VCR) on human HCC cells bel-7402. The effect of ginsenoside Rg3 on MDR1 mRNA expression in HCC cells was detected by reverse transcriptase-polymerase chain reaction(RT-PCR). Results The ginsenoside Rg3 of various concentrations ( 10,20,30,40,60 mg/L) combined with VCR (0.02 mg/L) produced longer inhibitory action than either drug alone (all P〈0.05, CDI〈1). Ginsenoside Rg3 (40.0 mg/L) led to marked reduction in MDR1 mRNA expression [ (79.21±2.23)%, (62.58±2.46%, (45.46±1.13% ) ] in HCC cells bel-7402 at various time points (24 h, 48 h and 72 h) as compared with control group (all P〈0.05). Conclusion Characterized by inhibiting MDR1 mRNA expression in bel-7402 ceils, ginsenoside Rg3 combined with VCR has co-inhibition on reversal of HCC cells bel-7402 resistance to VCR.
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